Process Capability Studies Using One-Sided Specifications

Process capability studies calculate the process capability indices Cp and Cpk.  These statistics tell us how well the process is meeting specifications or requirements.  Capability studies are designed for two-sided specifications that have an upper and a lower limit.  Adjustments must be made when we have a one-sided specification and/or a boundary limit in place […] read more

On April 27th, 2019, posted in: Project Management by Tags: ,

Process Capability and Process Control – how are they different?

In our Green Belt course I introduce the concepts of process capability and process control.   I find that many students have trouble understanding the difference between the two.  This is compounded by the fact that the output of a process may fall into of four possible combinations of capability and control. Process capability looks at […] read more

On April 14th, 2014, posted in: Six Sigma by Tags: , ,